baber/WOPTO huggingface dataset:
Patent GB-788568-A (GB)
Title: Treatment of flexible cellular material
IPC: C08J9/36
Filed: 1955-09-09
Abstract: A process for the manufacture of a flexible cellular structure comprises distributing a liquid reaction mixture comprising an activehydrogen-containing polymeric material, a polyisocyanate and water on to a casting surface, permitting the liquid reaction mixture to expand and form a flexible cellular structure and treating this structure with ammonia gas or ammonium hydroxide solution.  By the term "active-hydrogen-containing polymeric material" is meant polyesters, polyesteramides, polyalkylene ether glycols and mixtures of two or more of these having an average molecular weight of approximately 1000 to 5000, an acid number not greater than 5, and preferably a hydroxyl number from 20 to 110.  Preferably 2 to 8 equivalents of isocyanate per mol. of polymeric material are employed.  In an example, a cellular reaction product from a mixture of an adipic acid/ethylene glycol/propylene glycol polyester, water, diatomaceous earth, butyraldehyde/butylamine condensation product and tolylene diisocyanate is treated with a 7 per cent solution of ammonium hydroxide.  Alternatively the cellular material is exposed to an atmosphere containing gaseous ammonia.  Specifications 687,055, [Group IV (b)], 694,982, 696,449, 696,450 and 731,071 are referred to.
Patent GB-219543-A (GB)
Title: Improvements in perambulators, push-chairs or the like
IPC: B62B9/12
Filed: 1923-10-19
Abstract: 219,543. Lloyd & Co., Ltd., J., and Hyde, W. J. C. Oct. 19, 1923. Perambulators.-In perambulators, push-chairs, &c. of the type in which an auxiliary seat is provided at the front end of the vehicle and is provided with a hinged flap, the auxiliary and main seats are arranged so that the occupants face the same way and the flap is hinged at or near its rear edge to the back of the auxiliary seat. The flap 6 is curved so as to follow the general outline of the perambulator and when open preferably fits the part 3 and serves as a protection for the legs of the occupant of the main seat. A foot-rest 9 is provided for the occupant of the auxiliary seat and may be secured to the handle 10 or to the body or underframe. The main seat 2 may be foldable or detachable to permit a child to lie on the floor of the body.
Patent GB-1239882-A (GB)
Title: Process for handling and mounting semiconductor dice
IPC: H01L21/68
Filed: 1969-05-22
Abstract: 1,239,882. Splitting. RCA CORPORATION. 22 May, 1969 [29 May, 1968], No. 26129/69. Heading B5E. [Also in Division H1] In a method of manufacture of semi-conductor components a plurality of separate semiconductor devices are formed in a unitary wafer which is scribed to define weakened fracture planes between the devices, after which the wafer is detachably bonded to a flexible film and fractured along its weakened planes to separate the devices which remain attached to the film, and finally the film is stretched to separate the devices from one another and secured to an open frame. The flexible film is a thermoplastics film such as a thin plasticized vinyl and its surface may be textured to control the adherence of the devices. The fracturing of the wafer is accomplished by using a metal roller. Each device 23 is mounted on its individual header 21 by disposing it adjacent to its header and depressing a limited portion 26 of the film 3 opposite the die by means of a rod 25 to bring the device into contact with the header, bonding the device to the header by a thin layer or drop of adhesive such as epoxy resin, and releasing the depressed portion of the film so that it returns to its former position leaving the device on the header. In a further embodiment, an integrated circuit is mounted on its lead assembly in a similar manner, the device being soldered in position with its terminal pads contacting the appropriate leads.
Patent GB-151837-A (GB)
Title: Improvements in or relating to hand brakes for railway waggons and the like
IPC: B61H13/02
Filed: 1919-10-24
Abstract: 151,837. Herring, H. Oct. 24, 1919. Hand actuation.-In eitherside brakes for railway wagons &c., the hand-levers 5, 6. 7 are respectively secured and loosely pivoted on a cross-shaft 3 which carries an arm 8 connected by a link 9 to the joint 10 of toggle links 11, 12 connecting the hand-lever 7 to a bracket 13 on the wagon. Each hand-lever is looked by means of a ratchet plate 15 which is mounted to turn on vertical pivots 16 in a guide bracket 14, 17 and the upper pivot of each ratchet plate carries a. lever 18 connected by a link 19 to a longitudinal lever 20 so that both ratchet plates may be turned sideways by turning either of the plates by means of a lever 21 on the lower pivot 16. The ratchet plates are returned to the operative position by means of springs 23, and springs 22 hold the brake lever in the " off " position.
Patent GB-807902-A (GB)
Title: Improvements in or relating to derivatives of quercetin and to processes for their preparation
IPC: C07D311/30
Filed: 1956-08-27
Abstract: b -Tertiary-aminoethyl mono ethers of quercetin (3,5,7,31,41-pentahydroxy flavone), their acid addition and quaternary ammonium salts, having Vitamin P activity, are prepared by heating quercetin in aqueous alkaline medium, in an inert atmosphere, with a b -tertiary aminoethyl halide (or its hydrohalide salt), neutralizing the reaction mixture, and separating the mono-ether from the quercetin in the precipitate thus formed.  The tertiary amino group is of formula -NR1R2 wherein R1 and R2 repre sent lower alkyl groups, each containing at most six carbon atoms, or together with the N atom from a heterocyclic ring of five or six members.  In examples: (1) quercetin monohydrate in aqueous NaOH is stirred at 80-90 DEG  C. under nitrogen with b -morpholinoethyl chloride hydrochloride in aqueous NaOH, the mixture acidified and the b -morpholinoethyl mono ether separated from the dried precipitate thus obtained by extraction with boiling acetone; it is converted (3) into the ascorbate by treatment with methanolic ascorbic acid; and (5) into the methiodide by treatment in acetone with MeI; (2) and (4) as in (1) and (3) respectively but using b -diethylaminoethyl chloride hydrochloride to give the corresponding mono-ether and its ascorbate.
Patent GB-901403-A (GB)
Title: Improvements in and relating to the colouration of fibres based on polyacrylonitrile
Inventor: KREMER GILBERT
IPC: C09B43/124
Filed: 1960-07-28
Abstract: Polyacrylonitrile fibres are dyed with a dyestuff of the formula:- <FORM:0901403/IV (b)/1> in which R is the residue of a diazotisable, aromatic or heterocyclic, primary amine, R1 is the residue of an amino, hydroxy or ketoenol coupling compound, R11 is a hydrogen atom or an alkyl or aryl residue and X is a hydrogen atom or a cation, R and R1 being free of carboxyl or sulphonic groups not attached to the nitrogen atom and the radical <FORM:0901403/IV (b)/2> being attached to either R or R1, in which latter case it may constitute the auxochrome group.  The residue R may be substituted by halogen atoms or by alkyl, alkoxy, acylamino, nitro, sulphonamido, sulphone, or nitrile radicals and the residue R1 by halogen atoms or by alkyl, alkoxy, amino, alkylamino, dialkylamino, mono- or di-hydroxyalkylamino, alkylhyd-roxyalkylamino or hydroxy radicals. Dyeing is effected from an acid bath initially at about 50 DEG C., and subsequently at a higher temperature at which hydrolysis of the dyestuff occurs. Lists of suitable dyestuffs are given, the following being representative:-  <FORM:0901403/IV (b)/3>
Patent GB-969395-A (GB)
Title: Improvements in or relating to the treatment of strip metal
Inventor: FRANEK JOSEF
IPC: B21B1/22
Filed: 1962-07-09
Abstract: 969,395. Stretching strip. METAL BOX CO. Ltd. June 6, 1963 [July 9, 1962], No. 26317/62. Heading B3E. A method of stretching strip metal comprises moving the strip lengthwise and, at a predetermined position along the path thereof, longitudinally tensioning the strip by locally increasing the linear speed thereof to impart a permanent tensile strain to the strip, and applying to the strip a local compressive stress lower than the yield stress of tho strip but high enough to prevent the formation of stretcher strain marks on the strip. Strip 1 passes around a bridle roller 2, being pressed thereagainst by pinch rolls 4, 5 urged by means 7, 8 around a first tensioning roller 9, around a second tensioning roller 10, and around an exit bridle roller 11, being pressed thereagainst by pinch rolls 13, 14. All the rollers are rotated by a train of gears, the relative diameters of the rollers 9, 10 and their speeds being chosen so that the strip is stretched as it passes therebetween. Means 21, 22 also urge the roller 10 towards the roller 9 to compress the strip 1 passing between the two rollers, the compression stress being lower than the yield stress. The rollers 9, 10 and 4, 5, 13 and 14 are crowned. The diameter of the roller 9 is slightly greater than that of the roller 2 and the roller 10 than the roller 11 to compensate for gradually increasing elastic tensile strain in the strip 1. In another embodiment, Fig. 2, single pinch rolls 5, 14 co-operate with the bridle rolls 2 and 11 and auxiliary bridle rolls 2a, 11a are urged towards the bridle rolls 2, 11, the strip being stretched between the rolls 9, 10. Chocks 37 for the rollers 2a, 9 and 11a are supported by parallel links 41 and are urged towards the opposing rollers by hydraulic load cells 45. The pinch rollers 5, 14 are carried by bearing chocks urged towards the rollers 2 and 11 by hydraulic load cells 64 acting on yokes, each carrying a lever having a roller thereon engaging the chock and swung into position by hydraulic means. Strip guides are provided around and between the rolls. In a further embodiment, Fig. 7, the rollers 9 and 10 are spaced and a pressure roller 70 co-operates with the roller 10.
Patent GB-879931-A (GB)
Title: Determination of sulfur in a gas stream
IPC: G01N23/12
Filed: 1959-10-27
Abstract: 879,931. X-ray gas analysis. ESSO RESEARCH & ENGINEERING CO. Oct. 27, 1959 [Nov. 17, 1958], No. 36378/59. Class 40(3) The concentration of sulphurous gas in a gas stream is determined continuously by measuring the absorption of X-rays from an iron-55 source. Calibration curves may be derived by measuring absorption by pure sulphurous gas, base gas after desulphurization in a cadmium chloride/hydrochloric acid mixture, and mixtures of the two gases in known proportions. The method may be applied to a pipe between an oil refinery and a sulphur recovery plant.
Patent GB-712880-A (GB)
Title: Improvements in or relating to trawling apparatus
IPC: A01K73/02
Filed: 1952-10-21
Abstract: 712,880. Fishing trawls. DRUMMONDVILLE COTTON CO., Ltd. Oct. 21, 1952 [Sept. 6, 1952], No. 26433/52. Class 48 A door for a mid-water trawl comprises an elongated board E having lateral fins 33, 34, weights 39, 41 on the lower portion of the board arranged to cause the front of the board to tip downwardly at slow speeds, a pair of connecting elements 35, 37 spaced apart near the edge of the fin 34 to receive towing chains 62, 63 and a connecting member 43 at the stern of the door to receive a line connected to the net. A single board F provides the lateral fins 33, 34, this board and the board E each having a longitudinal slot engaging the other board; the two boards are held together by straps 27, 29 extending completely around the boards and bolted thereto; the straps are inset in grooves in the boards and at the edge of the fin-forming board F they form eyes constituting the connecting elements 35, 37 for the towing chains 62, 63. The connecting member 43 comprises a bracket and a swivel, the bracket being bolted to the finforming board F at the junction with the other board E. A door is connected to each side of the mouth of a net and the towing chains of the doors are connected to spaced warps connected to the trawler. The depth of the net in the water is governed by the speed of the trawler.
Patent GB-722299-A (GB)
Title: Electrically operated liquid spraying device
IPC: B05B9/08
Filed: 1952-10-22
Abstract: 722,299. Reciprocating pumps. EICHENAUER, R. Oct. 22, 1952. [July 31, 1952] No 26516/52. Class 102 (1). [Also in Group XXIX] In a liquid spraying device a piston 46b is vibrated by an electromagnet in a cylinder having an inlet opening 53 controlled by the piston and an outlet closed by a non-return valve 57a, through which liquid is discharged to a pressure chamber 63a closed by a disc forming part of the spray nozzle assembly (see Group XXIX) which includes a centrally apertured hollow cap 15. The piston 46b is returned by a spring 8 and actuated on its forward or delivery stroke by an armature 13 of a magnet 32 supplied through a cable 88a with current controlled by a switch 40 in the grip handle 66. The armature oscillation is controlled by a compression spring 30 located between a clip 12 secured to the armature and a regulating screw 36, there being just sufficient clearance between the end of the bore 30a housing the spring 30 and the clip 12 to allow the armature to oscillate. The spring 8 is compressed between the pump cylinder and a nut 104 which is secured to the free end of the piston 46b and abuts a plate 79 held in the clip 12. The device is screwed on to the cover 27 of a container 26 from which liquid is drawn via an inlet pipe 59 by the pump and discharged to the nozzle, liquid leaking back along the piston being returned to the container by way of a lateral bore 101 and a recess 102 in the pump cylinder body and a slot 103 at the gland end of the cylinder that communicates with the pipe 29 by a passage 29b. In a modification (Fig. 4) the pump body 47 is arranged at the bottom of the container 26, liquid being positively supplied by gravity to the pump inlet 53a and discharged through a pipe 25 to the nozzle, the pressure in the pipe 25 being relieved as necessary by a ball valve 5 loaded by a spring 6 controlled by a regulating screw 36a, by-passed liquid being returned to the container through a passage 29b and the return pipe 29. In a further modification, in which the piston actuates two parallel plungers reciprocating in their respective cylinders, the pump and its activating mechanism are housed in a structure that floats on the liquid to be sprayed and the nozzle, delivery pressure relief valve, electric control switch, and handle form a separate integer connected to the pump housing by flexible conduits.
Patent GB-924278-A (GB)
Title: Free piston engine
IPC: F02B71/00
Filed: 1960-07-29
Abstract: 924,278. Free piston engines cycles. H. JANICKE. July 29, 1960 [Aug. 4, 1959], No. 26540/60. Class 7(2) In a free-piston engine, the engine cylinder is supplied with gas by means of supply conduit means 18 and inlet orifice means 105 after scavenging orifice means and exhaust orifice means 106 in the engine cylinder have been closed, a gas reservoir 3 being provided between the inlet orifice means and the gas supply conduit means, the gas reservoir comprising a movable valve body 5 controlling the connection from the gas supply conduit means to the gas reservoir and between the gas reservoir and inlet orifice means respectively so that at each time only one of the connections is effective for supplying gas the position of the valve body being positively controlled in accordance with the position of the engine pistons and the gas reservoir being so dimensioned that its volume corresponds to the gas quantity needed for each single power stroke of the engine. As shown the connection between the reservoir 3 and the engine cylinder 1 is kept closed by -the extension 6 until the piston extension 7 has completely closed the bore 110. The relief valve 118 may be influenced by a control pulse e.g. by the supply pressure or the induction pressure or the filling or charging pressure of the collector of the compressors. Alternatively the controlling may be done by varying the valve actuating time. The valve body 5 is controlled from the synchronizing mechanism 20 by means of an hydraulic pump 14 and operating plunger 12. The plunger 15 of the pump 14 may be rotated for control purposes. The compression pressure may be used for varying the gas quantity.
Patent GB-503181-A (GB)
Title: Improvements in or relating to means for clamping girders and the like together
IPC: E01B9/10
Filed: 1938-09-12
Abstract: 503,181. Bolting; bolts. LINDSAY, Ltd., H., and LINDSAY, H. Sept. 12, 1938, No. 26543. [Class 89 (i)] In clamping girders and the like together with the aid of hooked bolts or adaptors as described in Specifications 411,400, 461,953, and 483,121, the bolts or adaptors are'supported with the aid of a plate member through which the bolt passes. As shown in Figs. 2 and 3 the plate member 1 has an aperture 2 for the hook bolt 3 and an upstanding lug 4 for engaging the back of the bolt head. In Fig. 6 is shown a plate member with a forked part 7, through which a bolt 3, Fig. 8, passes, and with upstanding lugs 4 supporting the adaptor 9, a spur 8 on the latter being arranged between the lugs. Serrations on the prongs prevents the plate from rising.
Patent GB-1482528-A (GB)
Title: Process for forming coatings on metal surfaces
IPC: B05D7/16
Filed: 1974-06-14
Abstract: 1482528 Coated metals SUMITOMO METAL INDUSTRIES Ltd and SEITETSU KAGAKU CO Ltd 14 June 1974 [15 June 1973 14 Feb 1974] 26548/74 Heading B2E [Also in Divisions B5 and F2] Metals may be coated with films of polyolefins over primer coatings of sulphochlorinated polyolefins containing 18 to 37 weight per cent chlorine and 0.2 to 2.5 weight per cent of sulphur, the sulphochlorinated polyolefin being heated to 80 to 220C to bond the polyolefin to the metal. The polyolefins may be polymers of ethylene or propylene and the metal may be steel, copper, aluminium, zinc or tin. In Example 7 steel plate coated with sulphochlorinated polyethylene from toluene solution is coated with polyethylene in a fluidised bed of powdered polyethylene and the resulting coating fused at 170C.
Patent GB-227916-A (GB)
Title: Improvements in or relating to leather staking machines
IPC: C14B1/40
Filed: 1923-10-24
Abstract: 227,916. Ayles, W. F., and Barrow, Hepburn, & Gale, Ltd. Oct. 24, 1923. Staking. - The working edge of the blade of a staking machine of the kind in which the leather is gripped between a blade and a roller which are then reciprocated over the surface of the leather while gripping it during movement in one direction only, is made undulatory with short shallow curves alternately convex and concave running into one another, the leather adapting itself to the whole of the working edge of the blade. The undulations may be uniform, or, as shown in Fig. 2, unequal in size. A number of blades A, R, C may be arranged behind one another, with the undulations out of alignment to operate upon the surface simultaneously, each blade being provided with a scraper A<2>, B<2>, C<2>. Specification 12413/97 is referred to.
Patent GB-444478-A (GB)
Title: Improvements in or relating to balancing means for the vertically reciprocating parts of spinning machines
IPC: D01H1/36
Filed: 1934-09-17
Abstract: 444,478. Shock-absorbers. BRITISH CELANESE, Ltd., 22, Hanover Square, London, and KINSELLA, E., and ADDY, C. W., c/o British Celanese, Ltd., Spondon, near Derby. Sept. 17, 1934, No. 26636. [Class 108 (iii)] [See also Group IX] The vertically reciprocating rails 6 of spinning-machines are balanced by means comprising fluid pressure cylinders and pistons arranged so that the pressure opposes the descent and assists the ascent. Two rails are provided and are reciprocated by camoperated levers through chains and traverse rods 13, the adjacent ends of the rods 13 being connected to pistons sliding in pairs of fixed cylinders 31 connected by pipes 38 to a reservoir 39. The rails 6 move oppositely so that as air is forced into one pair of cylinders it is forced out of the other, the pressure in the reservoir being kept constant. The pistons may be provided with auxiliary rams 41, Fig. 4, so as to cut-off the exhaust towards the end of the stroke to cushion the descent of the rails.
Patent GB-362856-A (GB)
Title: Improvements relating to electric storage batteries or accumulators
IPC: H01M2/10
Filed: 1930-09-08
Abstract: 362,856. Carriers for electric accumulators. TEMPLE, F., East Street, Alford. Lincolnshire. Sept. 8, 1930, No. 26714. [Class 133.] Electric accumulators are provided with carrying means comprising a horizontally disposed hoop or frame e engaging beneath lateral projections d on the article and having one or more pivotal handle members the spring legs c<2> of which are formed with inturned ends c<3> which pass through aligned apertures in the frame and either frictionally engage the walls of the accumulator or engage in apertures formed therein. The parts c<3> may, as shown, be provided with enlarged extremities c<4> affording a permanent connection of the handles. The frame may be provided with upwardly extending spring tongues e<2> engaging in recesses b<1> to hold the cover b in place, and depending spring strips may be provided to assist the frictional engagement of the handle ends. The grip portion g of the handle may carry an identification plate f covered by a celluloid &c. strip, and protective sleeves h of rubber &c. may be provided.
Patent GB-669954-A (GB)
Title: Improvements in and relating to the drying of ceramic and similar refractory ware
IPC: F26B5/00
Filed: 1949-10-18
Abstract: 669,954. Drying refractory compositions. SINGER, F. Oct. 18, 1950 [Oct. 18, 1949], No. 26764/49. Class 22 Refractory articles are dried by incorporating therein an ammonium salt, which decomposes during the drying into gas and thereby will be substantially - liberated from the article, in such an amount that the shape of the article is unchanged. Preferred salts are ammonium carbonate and bicarbonate, between 0.1 and 0.5 per cent by weight. In examples, the ingredients comprise certain of the following: Ball clay, bentonite, refractory grog, foundry sand, sillimanite and dextrin. The Provisional Specification discloses the use of organic ammonium salts and also derivatives of ammonia.
Patent GB-1105962-A (GB)
Title: Colour photographic materials and processes
Inventor: GREENHALGH COLIN WILLIAM
IPC: C07D231/52
Filed: 1964-06-29
Abstract: N - (4 - n - dodecylphenyl) - N1 - (1 - [4 - nitrophenyl - 5 - pyrazolonyl - 3) pyromellitic diimide is obtained by reacting 1-(4-nitro-phenyl)-3 - amino - 5 - pyrazolone with N - (4 - n - dodecylphenyl) pyromellitic monoimide monoanhydride. 1 - (4 - nitrophenyl) - 3 - (a  - sulphostearoylamino) - 5 - pyrazolone is obtained by reacting 1 - (4 - nitrophenyl) - 3 - amino - 5 - pyrazolone with a -sulphostearic acid monosodium salt. 4-(4n-Dodecylphenylaminocarbonyl) - N - [1 - (4 - nitrophenyl) - 5 - pyrazolonyl-3] phthalimide is obtained by reacting 4-(4-n-dodecylphenylaminocarbonyl) phthalic anhydride with 1-(4-nitrophenyl)-3-amino-5-pyrazolone. 1 - (4 - nitrophenyl) - 3 - (4 - n - dodecylanilino)-5-pyrazolone is obtained by reacting 1 - (4 - nitrophenyl) - 3 - amino - 5 - pyrazolone with 4-n-dodecylaniline in acetic acid.  The sodium salt of the corresponding 3-sulpho anilino compound is prepared by reaction of the product with conc. sulphuric acid in the presence of Na+.  1-(2,4-dinitrophenyl) - 3 - heptadecyl - 5 - pyrazolone is obtained by reacting ethylstearoylacetate with 2,4-dinitrophenylhydrazine in acetic acid to give the corresponding hydrazone, followed by treatment with NaOH/ethanol. 1 - (2 - nitro - 4 - sulphophenyl) - 3 - heptadecyl - 4 - (4 - methoxy - phenylazo)-5-pyrazolone is obtained by reacting ethylstearoylacetate with 2-nitro-4-sulphophenyl hydrazine to give the corresponding hydrazone which is cyclized by treatment with NaOH/ethanol to 1-(2-nitro-4-sulphophenyl)-3-heptadecyl-5-pyrazolone, which compound is reacted with 4-methoxybenzene diazonium chloride to form the azo compound.